CN103858706B - A kind of greenhouse by solar heat assists inside holding/shading system - Google Patents

Abstract

The invention relates to an auxiliary heat preservation/shading system used in a solar greenhouse, and belongs to the technical field of solar greenhouse environment control. In particular, it refers to a dual-function environmental control device installed inside the solar greenhouse to improve the thermal insulation performance and shading ability of the greenhouse. An auxiliary internal thermal insulation/shading system for a solar greenhouse, comprising a transmission mechanism (12), a support system, a thermal insulation/shading system and a sealing device. In the present invention, the auxiliary inner heat preservation/shading curtain of the solar greenhouse is divided into two parts, the east and the west, which can be controlled in blocks; According to the cultivation needs, unfold one side or both sides of the sunshade curtain. By adding an internal heat preservation system, the nighttime temperature environment of the greenhouse can be improved, which is conducive to improving the output and quality of production; by adding a shading system, the use time of the greenhouse can be extended and the utilization efficiency of the greenhouse can be improved.

Description

A solar greenhouse auxiliary internal heat preservation/shading system

technical field

The invention relates to an auxiliary heat preservation/shading system used in a solar greenhouse, and belongs to the technical field of solar greenhouse environment control. In particular, it refers to a dual-function environmental control device installed inside the solar greenhouse to improve the thermal insulation performance and shading ability of the greenhouse.

Background technique

Solar greenhouse is the most important facility for spring, autumn and winter vegetable production in northern my country, and its construction scale is still expanding. From the perspective of structural characteristics, solar greenhouses have better heat preservation and heat storage functions, and many areas can achieve overwintering production without heating. But there are still the following problems: First, the room temperature is low in winter. Although solar greenhouses in many areas can basically maintain production in winter, the lowest temperature at night is often at the low temperature of plant physiology, which makes it difficult to guarantee the yield and quality of vegetables; second, it cannot be used year-round. At present, solar greenhouses basically have no cooling control measures, so most of them are in a fallow state from June to August, which reduces the annual utilization rate of the greenhouse.

The structural characteristics of the solar greenhouse determine that the part with the most heat loss is the light-transmitting surface of the roof, accounting for more than 75% of the heat loss of the entire greenhouse. Although all greenhouses currently have thermal insulation covering on the outer surface of the light-transmitting surface, due to factors such as price (economic efficiency) and weight (influence on the structure) when selecting materials, most greenhouses have only one layer of external thermal insulation coverage. , Even materials with good thermal insulation properties have limited thermal insulation capacity. In addition, the insulation quilts used for many years often have improper storage in summer, which can easily cause aging and damage of the insulation quilt, which will lead to problems such as the decline of the insulation performance of the insulation quilt itself and the decrease of the sealing of the lap joints, which will seriously affect the winter nighttime of the solar greenhouse. temperature environment, and even affect production. Therefore, some people began to try to use the internal thermal insulation system, but the technical solutions adopted were mostly that the thermal insulation quilt (curtain) moved along the front roof in an arc or straight line from top to bottom. When the system moved and stopped, it needed to overcome gravity, which made the operation traction Large and inconvenient for manual operation; its support system is mostly truss or double-layer skeleton, which occupies a part of the upper space of the greenhouse.

On the other hand, most solar greenhouses do not have sunshade equipment. Whenever the solar radiation is too strong and the only ventilation and cooling measures cannot meet the control requirements, cultivation and production can only be abandoned. A small number of solar greenhouses with shading devices mostly use external shading. Although the effect of shading and suppressing high temperature is better, the input cost of the support system is relatively high, so it is rarely used in production.

Contents of the invention

The purpose of the present invention is to provide an auxiliary internal heat preservation/shading system for a solar greenhouse. Through this system, the thermal insulation capacity of the solar greenhouse can be improved, the temperature environment of the greenhouse at night in winter can be improved, and the utilization time of the greenhouse in the high temperature season can be extended.

In order to achieve the above object, the present invention is achieved through the following technical solutions:

An auxiliary internal heat preservation/shading system for a solar greenhouse, comprising a transmission mechanism 12, a support system, a heat preservation/shading system and a sealing device.

The transmission mechanism 12 includes a motor 13, a reducer 14, a drive shaft 18, a forward curtain cable 15, a reverse curtain cable 17, a drive shaft support 19, and a steering pulley 16, wherein,

The motor 13 is installed on the inner surface of the greenhouse gable 1, the motor 13 is connected to the reducer 14, the reducer 14 is connected to the drive shaft 18, the drive shaft 18 is arranged on the drive shaft support 19, and the drive shaft support 19 is fixed on the inner surface of the solar greenhouse gable 1 , the forward curtain steel cable 15 and the reverse curtain steel cable 17 are respectively fixed on both sides of the curtain rod 5, the forward curtain steel cable 15 and the reverse curtain steel cable 17 are wound on the drive shaft 18, and the steering The pulley 16 is arranged on the greenhouse gable 1 or the greenhouse skeleton 6;

The support system includes a greenhouse gable 1, a greenhouse front wall 2, a guide rail 3, a curtain rod 5, a greenhouse frame 6, a lateral support 11, a rear wall 23, a curtain line 24 and a suspension ring 25, wherein,

The two ends of the lateral support 11 are fixed on the inner surface of the greenhouse gable 1 at both ends; a guide rail 3 parallel to the ground is respectively arranged at the bottom and top of the greenhouse film 20, and a slide block 26 is arranged on the guide rail 3, and the two ends of the guide rail 3 are supported On the greenhouse gable 1, the sliders 26 on the guide rail 3 are respectively fixed on the two ends of the curtain rod 5; the curtain rod 5 is arc-shaped, parallel to the greenhouse frame 6; The curtain line 24 and the supporting curtain line 24 are located below the greenhouse film 20 and are installed next to the lower string of the greenhouse frame 6; the supporting curtain line 24 is hung with a plurality of suspension rings 25, and the suspension rings 25 hang the inner heat preservation/shade curtain 4;

The heat preservation/sunshade system includes an inner heat preservation/sunshade curtain 4, an outer heat preservation quilt 9, a bottom sealing plate 22 and a top sealing plate 21; wherein,

The inner insulation/sunshade curtain 4 is divided into two parts, left and right. One end of the inner insulation/sunshade curtain 4 is fixed on the greenhouse gable 1, and the other end is fixed on the support curtain rod 5. The inner insulation/sunshade curtain 4 is located at the support curtain line 24 under;

The sealing device includes a middle sealing groove 10, a top sealing plate 21, and a bottom sealing plate 22; wherein,

The middle sealing groove 10 is installed in the middle of the greenhouse frame 6 on the front roof of the solar greenhouse, the bottom sealing plate 22 is fixed on the front wall 2 of the greenhouse, and the top sealing plate 21 is installed on the rear roof 8 below the greenhouse.

The cross-section of the middle sealing groove 10 is designed as an I-shape, with a sealing groove inner cavity 28 on each side.

The middle sealing groove 10 is made of thermal insulation material.

The light transmittance of the inner thermal insulation/sunshade curtain 4 is 0%-100%. According to the requirements of thermal insulation effect and shading effect, different light transmittance curtain materials can be selected.

The present invention adopts above technical scheme, and it has the following advantages:

1. Improve the thermal insulation capacity of the solar greenhouse in winter, which is conducive to improving the temperature environment of winter cultivation and improving production performance.

The present invention adds a heat-preservation/sunshade curtain that can be unfolded or folded on the front roof of the solar greenhouse where heat dissipation is the most. During the day, the curtain is folded on the east and west gables without affecting the light of the greenhouse; at night, the curtain is unfolded to improve the heat preservation capacity at night. At the same time, the invention seals the insulation/sunshade curtain around and at the junction, so that the curtain and the front roof form a closed air space, which increases the heat insulation capacity of the solar greenhouse, increases the sealing performance, and reduces the penetration of cold wind , to further improve the internal environment of the solar greenhouse, improve the ability to regulate the solar greenhouse, and improve the temperature environment of the greenhouse at night under the premise of saving heating costs, which is conducive to improving the yield and quality of crops.

2. The shading and temperature adjustment equipment is added to improve the control ability, which can reduce the impact of high temperature in the spring and autumn cultivation seasons, prolong the use time of the solar greenhouse and increase the utilization rate of the greenhouse.

In the present invention, the auxiliary inner thermal insulation/shading curtain of the solar greenhouse is divided into two parts, the east and the west, and is controlled in blocks. , to achieve full deployment, or partial deployment, for shading; through shading, the impact of high temperature on crops can be effectively reduced, the production capacity of the greenhouse can be ensured, the use time of the greenhouse can be extended, and its utilization rate can be improved.

3. The orbital movement system is adopted, which increases the operational flexibility and safety of the solar greenhouse auxiliary internal heat preservation/shading system.

Compared with the traditional heat preservation or sunshade system of the solar greenhouse, the present invention applies the gravity of the entire inner heat preservation/shade system to the horizontal guide rail to perform horizontal movement, which changes the traditional work of gravity into work of friction, greatly reducing the system movement time. The traction force increases the flexibility of the system; at the same time, after gravity is changed into friction force, the system can stop freely at any position, which increases the safety of the system.

4. The support system is close to the lower edge of the greenhouse frame, which does not occupy indoor space and does not affect indoor operations.

In the present invention, the track is fixed on the front roof skeleton, and the curtain is pulled by the guide rail and the steel cable, so that the curtain becomes a curved surface parallel to the front roof, which reduces the loss of operating space due to the addition of the internal heat preservation system as much as possible, and improves the safety of personnel in sunlight. The comfort inside the greenhouse is also conducive to the smooth progress of mechanized operations.

Description of drawings

Fig. 1 is the sectional view of solar greenhouse auxiliary internal heat preservation/shade system of the present invention;

Fig. 2 is the axonometric view of the solar greenhouse auxiliary internal heat preservation/shading system of the present invention;

Fig. 3 is a schematic diagram of the transmission mechanism of the solar greenhouse auxiliary internal heat preservation/shading system of the present invention;

Fig. 4 is a structural diagram of the central sealing groove of the solar greenhouse auxiliary internal heat preservation/shade system of the present invention;

Fig. 5 is a cross-sectional view of the central sealing groove of the solar greenhouse auxiliary internal heat preservation/shade system of the present invention;

Fig. 6 is a detailed diagram of the installation of the inner heat preservation/shade curtain of the auxiliary inner heat preservation/shade system of the solar greenhouse of the present invention;

Fig. 7 is a detailed view of the sealing plate of the solar greenhouse auxiliary internal heat preservation/shading system of the present invention;

Reference signs:

1 Greenhouse gable wall 2 Greenhouse front wall 3 Rails

4 inner insulation/shade curtain 5 support curtain rod 6 greenhouse skeleton

7Greenhouse operation room 8Rear roof 9External insulation quilt

10 central sealing groove 11 lateral support 12 transmission mechanism

13 motor 14 reducer 15 forward curtain steel cable

16 Steering pulley 17 Reverse curtain cable 18 Drive shaft

19 drive shaft support 20 greenhouse film 21 top sealing plate

22 Bottom sealing plate 23 Back wall 24 Curtain line

25 Lifting Ring 26 Slider 27 Middle Support of Sealing Groove

28 sealed groove cavity

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

The invention relates to an auxiliary internal heat preservation/shading system for a solar greenhouse, including a transmission mechanism 12, a support system, a heat preservation/shading system and a sealing device. The greenhouse operation room 7 is connected to the auxiliary internal heat preservation/shading system for the solar greenhouse.

Referring to FIGS. 1-3 , the transmission mechanism 12 includes a motor 13 , a reducer 14 , a drive shaft 18 , a forward curtain cable 15 , a reverse curtain cable 17 , a drive shaft support 19 , and a steering pulley 16 .

Among them, the motor 13 is installed on the inner surface of the greenhouse gable 1 at a height of 1600 mm from the ground. The motor 13 is connected to the reducer 14, and the reducer 14 is connected to the drive shaft 18. The motor 13 drives the drive shaft 18 to move, and the drive shaft 18 is arranged on the drive shaft support. 19, the drive shaft support 19 is fixed on the inner surface of the solar greenhouse gable 1, so that the installation and positioning axis of the drive shaft 18 is parallel to the ground, and the height of the drive shaft 18 from the ground can be determined according to actual conditions, which is convenient for operation.

The forward curtain steel cable 15 and the reverse curtain steel cable 17 are respectively fixed on both sides of the curtain rod 5, preferably, the forward curtain steel cable 15 and the reverse curtain steel cable 17 are respectively fixed on the curtain rod 5. The middle part can ensure the balance of the installation. The forward curtain steel cable 15 and the reverse curtain steel cable 17 are wound on the drive shaft 18, which is driven by manual or motor 13, so that the drive shaft 18 passes through the forward curtain steel cable 15 and the reverse curtain steel cable. 17 drives the supporting curtain rod 5 to move in parallel along the length direction of the greenhouse, thereby realizing the unfolding and folding of the curtain. The diverting pulley 16 is arranged on the greenhouse gable 1 or the greenhouse frame 6, and is used for changing direction of the forward curtain steel cable 15 and the reverse curtain curtain steel cable 17 in the greenhouse space.

Please refer to Fig. 1, Fig. 2, Fig. 6 and Fig. 7, the support system includes greenhouse gable 1, greenhouse front wall 2, guide rail 3, supporting curtain rod 5, greenhouse skeleton 6, lateral support 11, rear wall 23, supporting curtain line 24 and rings 25. Wherein, the two ends of the lateral support 11 are fixed on the inner surfaces of the greenhouse gables 1 at both ends, and are used for overall fixing of the greenhouse frame 6 . A guide rail 3 parallel to the ground is respectively arranged at the bottom and top of the greenhouse film 20 , a slide block 26 is arranged on the guide rail 3 , and the two ends of the guide rail 3 are supported on the greenhouse gable 1 . The slide block 26 on the guide rail 3 is respectively fixed on the two ends of the curtain rod 5, so that the curtain rod 5 and the slide block 26 can be integrally reciprocated along the guide rail 3. The supporting curtain rod 5 is arc-shaped, fixed on the greenhouse gable 1, and parallel with the greenhouse skeleton 6. A plurality of supporting curtain lines 24 are arranged parallel to the moving direction of the supporting curtain rod 5 , and the supporting curtain lines 24 are located below the greenhouse film 20 and are installed next to the lower chord of the greenhouse framework 6 . A plurality of suspension rings 25 are hung on the support curtain line 24, and the inner heat preservation/shading curtain 4 is suspended on the suspension rings 25.

Referring to Fig. 1 and Fig. 2, the heat preservation/sunshade system includes an inner heat preservation/sunshade curtain 4, an outer heat preservation quilt 9, a bottom sealing plate 22 and a top sealing plate 21. Inner thermal insulation/sunshade curtain 4 is divided into left and right two parts, and one end of inner thermal insulation/sunshade curtain 4 is fixed on the greenhouse gable 1, and the other end is fixed on the supporting curtain rod 5.

As shown in Figure 7, the inner heat preservation/sunshade curtain 4 is located under the support curtain line 24, in order to prevent the inner heat preservation/sunshade curtain 4 from sagging, the inner heat preservation/sunshade curtain 4 is hung on the support curtain line 24 through the suspension ring 25 at an appropriate distance Up, the inner thermal insulation/shade curtain 4 is driven by the curtain rod 5 to reciprocate. Inner thermal insulation/sunshade curtain 4 can select materials such as embellishment aluminum film, aluminum foil for use as required.

The light transmittance of the thermal insulation/sunshade curtain 4 is 0%-100%. According to the requirements of thermal insulation effect and shading effect, curtain materials with different light transmittance can be selected.

Please refer to FIG. 1 and FIG. 2 , the sealing device includes a middle sealing groove 10 , a top sealing plate 21 , and a bottom sealing plate 22 . The middle sealing groove 10 is made of thermal insulation material and installed in the middle of the greenhouse frame 6 on the front roof of the solar greenhouse. As shown in Figure 4 and Figure 5, the cross section of the middle sealing groove 10 is designed as I-shaped, with a The sealing groove inner cavity 28 is used to accommodate the supporting curtain rod 5 when the supporting curtain rod 5 runs to the middle of the solar greenhouse, so as to achieve the effect of sealing.

The top sealing plate 21 and the bottom sealing plate 22 are as shown in Figure 7, and the bottom sealing plate 22 is fixed on the greenhouse front wall 2 with PC board material; The sunshade curtain 4 naturally hangs down and overlaps with the bottom sealing plate 22 to seal, which can ensure that the heat preservation system has good sealing performance, thereby improving the heat preservation effect; , rubber sleeves and the like can be added to the upper edge of the bottom sealing plate 22. The top sealing plate 21 is installed under the rear roof 8 of the greenhouse. The top sealing plate 21 and the bottom end 22 are only different in position, and the other functions and installation methods are the same.

When the present invention is used:

1. When used as an auxiliary heat preservation system, in order to ensure convenient operation, before the outer heat preservation quilt 9 is deployed, start the auxiliary inner heat preservation/shading system of the present invention, that is, turn on the switch of the motor 13 of the present invention, and the motor 13 rotates in the forward direction. The reducer 14 decelerates, the drive shaft 18 drives the reverse curtain steel cable 17 and pulls the curtain rod 5 to move from the gable 1 to the center of the greenhouse, and the curtain rod 5 drives the inner insulation/shade curtain 4 to unfold. When the curtain rod 5 enters the sealing In the groove cavity 28, turn off the switch of the motor 13, and the heat preservation/shade curtain 4 stops moving; The interlayer, both of which increase the thermal resistance of the front roof of the solar greenhouse, can effectively prevent the greenhouse from dissipating heat to the outside at night, and can increase the nighttime temperature of the solar greenhouse.

When the greenhouse needs light transmission, the outer heat preservation quilt 9 can be opened earlier, and then the auxiliary inner heat preservation/shading system of the present invention can be folded up. That is, turn on the switch of the motor 13, the motor 13 rotates in the opposite direction, and the curtain rod 5 moves to the greenhouse gable 1, and the curtain rod 5 drives the heat preservation/shade curtain 4 to close. When the curtain rod 5 moves to the same plane as the surface of the greenhouse gable 1, Turn off the switch of motor 13, stop the motion of insulation/sunshade curtain 4.

2. In the seasons of spring, summer and autumn, when the outdoor solar radiation is strong, the indoor temperature is too high which is not conducive to plant growth. At this time, the auxiliary internal heat preservation/shading system of the present invention can be activated for shading. According to the sunshade management requirements, turn on the switch of the motor 13, the motor 13 rotates in the forward direction, decelerates through the reducer 14, and the drive shaft 18 drives the reverse curtain steel cable 17 to pull the curtain rod 5 to move from the greenhouse gable 1 to the center of the greenhouse. Bar 5 drives insulation/sunshade curtain 4 to launch, and according to specific circumstances, selects the degree that insulation/sunshade curtain 4 launches, turns off the switch of motor 13 in good time, stops the motion of insulation/sunshade curtain 4. When the thermal insulation/sunshade curtain 4 is fully unfolded, the thermal insulation/sunshade curtain 4 reflects sunlight, which can effectively prevent solar radiant heat from entering the greenhouse and play a role in suppressing high temperature.

When the light and temperature conditions inside the solar greenhouse are insufficient, the switch of the motor 13 is turned on, the motor 13 rotates in the opposite direction, the curtain rod 5 moves to the greenhouse gable 1, the curtain rod 5 drives the heat preservation/shade curtain 4 to close, and when the curtain rod 5 moves When reaching the same plane as the surface of the greenhouse gable 1, turn off the switch of the motor 13, stop the heat preservation/shade curtain 4 movement, and increase the incident amount of sunlight.

3. By using the solar greenhouse auxiliary internal heat preservation/shading system of the present invention, the nighttime heat dissipation of the solar greenhouse can be reduced in winter, the thermal insulation performance of the solar greenhouse can be improved, and the temperature environment of the solar greenhouse at night in winter can be improved; The effect of radiant heat on the greenhouse to prevent high temperature hazards. Therefore, the technology of the present invention can improve the ability to regulate the light and temperature environment of the solar greenhouse, improve the production environment of the greenhouse, increase the yield and quality of production; it can also prolong the use time of the greenhouse, improve the utilization efficiency of the greenhouse, and further increase the production efficiency.

Claims (4)

1. A solar greenhouse auxiliary internal heat preservation/sunshade system, characterized in that: comprising a transmission mechanism (12), a support system, a heat preservation/sunshade system and a sealing device, the transmission mechanism (12) includes a motor (13), a deceleration Device (14), drive shaft (18), forward curtain steel cable (15), reverse curtain steel cable (17), drive shaft support (19), steering pulley (16), wherein, The motor (13) is installed on the inner surface of the greenhouse gable (1), the motor (13) is connected to the reducer (14), the reducer (14) is connected to the drive shaft (18), and the drive shaft (18) is arranged on the drive shaft support (19 ), the drive shaft support (19) is fixed on the inner surface of the solar greenhouse gable (1), and the forward curtain steel cable (15) and the reverse curtain steel cable (17) are respectively fixed on the curtain rod (5) On both sides, the forward curtain steel cable (15) and the reverse curtain steel cable (17) are wound on the driving shaft (18), and the steering pulley (16) is arranged on the greenhouse gable (1) or the greenhouse frame (6) ; The supporting system includes a greenhouse gable (1), a greenhouse front wall (2), a guide rail (3), a curtain rod (5), a greenhouse skeleton (6), a lateral support (11), a rear wall (23), a curtain Line (24) and suspension ring (25), wherein, The two ends of the lateral support (11) are fixed on the inner surfaces of the two greenhouse gables (1); a guide rail (3) parallel to the ground is respectively arranged at the bottom and top of the greenhouse film (20), and a guide rail (3) is provided on the guide rail (3). Slide block (26) is arranged, and the two ends of guide rail (3) are supported on the greenhouse gable (1), and the slide block (26) on the guide rail (3) is respectively fixed on the two ends of curtain rod (5); 5) is arc-shaped, parallel to the greenhouse frame (6); a plurality of support curtain lines (24) are arranged parallel to the movement direction of the support curtain rod (5), and the support curtain lines (24) are located under the greenhouse film (20) and are close to the greenhouse The skeleton (6) is installed under the chord; a plurality of suspension rings (25) are hung on the support curtain line (24), and the suspension rings (25) hang the inner heat preservation/shading curtain (4); The heat preservation/sunshade system includes an inner heat preservation/sunshade curtain (4), an outer heat preservation quilt (9), a bottom sealing plate (22) and a top sealing plate (21); wherein, The inner thermal insulation/sunshade curtain (4) is divided into two parts, left and right. One end of the inner thermal insulation/sunshade curtain (4) is fixed on the greenhouse gable (1), and the other end is fixed on the support curtain rod (5). The sunshade curtain (4) is positioned under the support curtain line (24); The sealing device includes a middle sealing groove (10), a top sealing plate (21), and a bottom sealing plate (22); wherein, The middle sealing groove (10) is installed in the middle of the greenhouse frame (6) on the front roof of the solar greenhouse, the bottom sealing plate (22) is fixed on the greenhouse front wall (2), and the top sealing plate (21) is installed on the greenhouse rear roof (8 ) below. 2. The solar greenhouse auxiliary internal heat preservation/shading system according to claim 1, characterized in that: the cross section of the central sealing groove (10) is designed as an I-shape, and there is a sealing groove inner cavity (28) on each side. 3. The solar greenhouse auxiliary internal heat preservation/shading system according to claim 2, characterized in that: the middle sealing groove (10) is made of heat preservation material. 4. The solar greenhouse auxiliary internal thermal insulation/shading system as claimed in claim 1, characterized in that: the light transmittance of the internal thermal insulation/sunshading curtain (4) is 0%-100%, according to the requirements of thermal insulation effect and shading effect, Choose different light transmittance curtain materials.